Sailor Mercury (セーラーマーキュリー) is the Guardian of Water and Wisdom, created by Naoko Takeuchi in 1992. Her true identity is Ami Mizuno (水野 亜美). Sporting short blue hair, she is a sweet, shy, and exceptionally intelligent girl who fights alongside the Sailor Guardians to protect her friends and dreams of becoming a doctor. Equipped with a supercomputer and water- and ice-based powers, she serves as the team's gentle, soft-spoken analyst and strategist.